Added HTTP endpoints for Correctness counts

golden/go/db/db.go

 package db
 
 import (
         "fmt"
 
         "github.com/golang/glog"
         "skia.googlesource.com/buildbot.git/go/database"
         "skia.googlesource.com/buildbot.git/go/metadata"
 )
 
 const (
         // Key of the password for the readwrite user.
         METADATA_KEY = "readwrite"
 )
 
 // The migration steps for this DB.
 func MigrationSteps() []database.MigrationStep {
         return migrationSteps
 }
 
-// Returns the DB connection string for running in production where a
-// metadata server is available. If 'local' is true it will always return
-// "" (empty string). When used with Init() this will cause it to use a
-// local SQLite database. If it's not local and the meta data server is
-// unreachable it will terminate.
-func GetDatabase(mySQLConnStr string, sqlitePath string, local bool) *database.DatabaseConfig {
+// Returns DatabaseConfig instance for running in production if a
+// metadata server is available. If 'local' is true it will always
+// set the MySQL connection string to "" and thus use a local SQLite database
+// when used with database.NewVersionedDB.
+func GetDatabaseConfig(mySQLConnStr string, sqlitePath string, local bool) *database.DatabaseConfig {
         useMySQLConnStr := mySQLConnStr
 
         // We are in the production environment, so we look up the password.
         if !local {
                 //  First, get the password from the metadata server.
                 // See https://developers.google.com/compute/docs/metadata#custom.
                 password, err := metadata.Get(METADATA_KEY)
                 if err != nil {
                         glog.Fatalf("Failed to find metadata. Use 'local' flag when running locally.")
                 }
@@ skipping 39 matching lines @@
 
         // Use this is a template for more migration steps.
         // version x
         // {
         //      MySQLUp: ,
         //      MySQLDown: ,
         //      SQLiteUp: ,
         //      SQLiteDown: ,
         // },
 }